What data does a company hold on me?

Step-by-step legal guidance hasn't been verified in Ελληνικά yet, so it's shown in English below. The interface is in Ελληνικά.

Have you already sent the company a data access request?
Yes, I sent it
What happened after your request?
They answered, but incomplete or evasive

Article 15 sets what a complete answer includes: a copy of the data itself plus the purposes, categories, recipients, storage period, the source of the data, and whether automated decision-making is used. "We have your data but won't show it" is not compliance.

Reply in writing pointing out what is missing, and give them a short deadline. If the answer stays incomplete, complain to your Data Protection Authority (Art. 77) — describe exactly which parts of Article 15 were not answered.

Primary sources

GDPR Art. 15 · CELEX 32016R0679 ↗Right of access
GDPR Art. 12 · CELEX 32016R0679 ↗Response obligations and deadlines

What you can do next

Lodge a complaint with your national Data Protection Authority — free of charge, in the country where you live or work (GDPR Art. 77).

This is legal information, not legal advice. For your specific case, contact your national Data Protection Authority, labour inspectorate, a trade union or a free legal clinic.